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I. Basic Information for CVE-2026-24664
Vulnerability Information

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Vulnerability Title
Open eClass is Vulnerable to Username Enumeration via Login Response Discrepancies
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, a username enumeration vulnerability allows unauthenticated attackers to identify valid user accounts by analyzing differences in the login response behavior. This issue has been patched in version 4.2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
响应差异性信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Open eClass 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open eClass是Greek Universities Network开源的一个电子课堂系统。 Open eClass 4.2之前版本存在安全漏洞,该漏洞源于用户名枚举,可能导致识别有效用户账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
gunetopeneclass < 4.2 -
II. Public POCs for CVE-2026-24664
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III. Intelligence Information for CVE-2026-24664
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